Realflight 7.5 elite mod 1 trial#
Realflight 7.5 elite mod 1 professional#

For inclusion, participants had to be well-trained, as evaluated by a maximum power-to-weight ratio during the GXT at screening that should exceed 4 W/kg.

Realflight 7.5 elite mod 1 trial#

The study is registered in the Dutch Trial Registry (Nederlands Trial Register), number NTR5643. The study was approved by the Independent Ethics Committee of the Foundation Evaluation of Ethics in Biomedical Research (Stichting Beoordeling Ethiek Biomedisch Onderzoek, Assen, Netherlands). Informed consent was obtained from all individual participants included in the study.

Briefly, the study was a double-blind, randomized, placebo controlled, parallel, single centre trial to evaluate the effects of recombinant human erythropoietin (rHuEPO) in forty-eight healthy male cyclists aged 18 to 50. The aim of this study is to evaluate the repeatability and predictive value of representative concepts using a large dataset of BLCs from a group of well-trained cyclists who performed multiple GXTs, time trials and an uphill road race in the setting of a clinical study.Д«lood lactate curve data in this paper were generated in a previously published study. For these reasons there is debate about these LT concepts. Moreover, populations that were included in different studies often differed in training status, age and category of sport. These different concepts are used interchangeably throughout scientific studies and in sports and show variable repeatability and predictive value. ДЄ previous literature review showed that there are many methods used to analyse the BLCs, with approximately 25 different concepts identified in literature to describe some form of LT.

On the other hand, the more accurate method of determining maximum lactate steady state (MLSS), using several sessions with different workloads takes more time, which is the reason why an approximation of MLSS using lactate threshold concepts was developed. Moreover, determining where this single point lies in the relatively smooth curve, that is the result of a complex system of factors, can prove difficult as well. But as LT is based on a maximal exercise test protocol that does not directly mimic endurance exercise, finding a single point in the resulting BLC that has a strong relation to endurance performance is challenging.

Realflight 7.5 elite mod 1 professional#

Therefore these measures are relevant in sports medicine, both in amateur and professional sports. BLCs and LT concepts can be used to assess вЂendurance fitnessвЂ™ in athletes, and to evaluate the effects of and to prescribe training exercises for individual athletes. Although many terms have been used for this point, in this work they will be termed lactate threshold (LT) concepts. Since the 1960вЂ™s BLCs have been analysed trying to accurately determine a point in this curve that predicts endurance performance.

This (exponential) rise in bLa in the BLC is of importance, as the corresponding exercise intensity is associated with endurance performance since it correlates with the transition from aerobic to anaerobic workout. When elimination becomes saturated, bLa will start to rise when production exceeds clearance. During high intensity contractions lactate is formed along with H + in the muscles, followed by an increased elimination of lactate from plasma. This can be visualized in a blood lactate curve (BLC) using a maximal graded exercise test (GXT): as the workload on the athlete increases over time, blood lactate concentrations (bLa) are measured at defined intervals. Nevertheless, the concentration of lactate in the blood relative to the exercise intensity is a relevant marker of endurance performance. The measurement of blood lactate is extensively used in sports medicine, although there is debate on how lactate affects fatigue in endurance athletes.